BW Home Outdoor Surveillance Security 2.4G Wireless Color Video Camera CCTV System with 2pcs Cameras (2.4GHz) Wireless Infrared night vision Camera. Infrared night vision CMOS Wireless Camera with 5m night vision range. 4 Channel Receiver work with 2 Cameras. 420 TV Line Horizontal Definition&100m transmission distance without block. Built-in Microphone in Camera enables Audio Monitoring.